diff --git a/src/backend/backend.js b/src/backend/backend.js
index a8f44fe..9ee62e5 100644
--- a/src/backend/backend.js
+++ b/src/backend/backend.js
@@ -6155,7 +6155,7 @@ router
     const raw = String(ctx.request.body?.q || ctx.request.body?.prompt || '').trim();
     if (!raw) { ctx.redirect('/'); return; }
     const ssbRefLib = require('../server/node_modules/ssb-ref');
-    const hashtagMatch = raw.match(/^#([\p{L}\p{N}_-]+)/u);
+    const hashtagMatch = raw.match(/^#([0-9A-Za-z_À-￿-]+)/); // sin \p{}: nodejs-mobile no lleva ICU completo
     if (hashtagMatch) {
       ctx.redirect('/search?query=' + encodeURIComponent('#' + hashtagMatch[1]));
       return;
diff --git a/src/models/data_model.js b/src/models/data_model.js
index 06ce6bb..efa67dd 100644
--- a/src/models/data_model.js
+++ b/src/models/data_model.js
@@ -49,7 +49,7 @@ const TITLE_STOPWORDS = new Set([
 
 const titleTerms = (c) => String(c.title || c.name || c.question || c.concept || '')
   .toLowerCase()
-  .split(/[^\p{L}\p{N}]+/u)
+  .split(/[^0-9A-Za-zÀ-￿]+/) // sin \p{}: nodejs-mobile no lleva ICU completo
   .filter(w => w.length >= 3 && !TITLE_STOPWORDS.has(w) && !/^\d+$/.test(w));
 
 const termsOf = (kind, c) => {